[go: up one dir, main page]

FR508301A - Improvements to cinematographic film perforators - Google Patents

Improvements to cinematographic film perforators

Info

Publication number
FR508301A
FR508301A FR508301DA FR508301A FR 508301 A FR508301 A FR 508301A FR 508301D A FR508301D A FR 508301DA FR 508301 A FR508301 A FR 508301A
Authority
FR
France
Prior art keywords
cinematographic film
perforators
film perforators
cinematographic
film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Ernst Gustav Wilhelm Dittmer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ERNST GUSTAV WILHELM DITTMER
Original Assignee
ERNST GUSTAV WILHELM DITTMER
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ERNST GUSTAV WILHELM DITTMER filed Critical ERNST GUSTAV WILHELM DITTMER
Application granted granted Critical
Publication of FR508301A publication Critical patent/FR508301A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/0007—Perforation of photographic films

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR508301D 1918-12-18 1920-01-10 Improvements to cinematographic film perforators Expired FR508301A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK508301X 1918-12-18

Publications (1)

Publication Number Publication Date
FR508301A true FR508301A (en) 1920-10-07

Family

ID=1535768

Family Applications (1)

Application Number Title Priority Date Filing Date
FR508301D Expired FR508301A (en) 1918-12-18 1920-01-10 Improvements to cinematographic film perforators

Country Status (1)

Country Link
FR (1) FR508301A (en)

Similar Documents

Publication Publication Date Title
FR508301A (en) Improvements to cinematographic film perforators
FR492708A (en) Photographic films
FR517635A (en) Improvements to projectors
FR510016A (en) Improvements to reels for cinematographic projection devices
FR494113A (en) Improvements to photographic or cinematographic projections
FR523467A (en) Darkroom for cinematographic images
FR505023A (en) Improvements to safety shutters for cinematographic projectors
FR510584A (en) Improvements to cinematographic film boxes
FR863527A (en) Improvements to cinematographic film splicers
FR487149A (en) Improvements to devices for projection of cinematographic paintings
FR512247A (en) Improvements to motion picture reels
FR516394A (en) Shutter for cinematographic device
CA188938A (en) Photographic film
CA186045A (en) Photographic film
FR499336A (en) Improvements to shutters for cinematographic machines and the like
CH81460A (en) High speed photographic copier
FR506547A (en) Improvements to shutter disks for cinematographic projection devices
FR522983A (en) Improvements made to film screenings
FR490610A (en) Cinematograph
CH82261A (en) Cinematograph
CH78956A (en) Cinematograph
FR529875A (en) Improvements to motion picture film reels
FR506549A (en) Improvements to film centering devices for cinematographic projection devices
FR493384A (en) Improvements to cinematographic devices
FR492401A (en) Improvements made to screens for cinematographic or other projections