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FR605323A - Improvements to stairs - Google Patents

Improvements to stairs

Info

Publication number
FR605323A
FR605323A FR605323DA FR605323A FR 605323 A FR605323 A FR 605323A FR 605323D A FR605323D A FR 605323DA FR 605323 A FR605323 A FR 605323A
Authority
FR
France
Prior art keywords
stairs
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)
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.)
IRVING IRON WORKS CO
Original Assignee
IRVING IRON WORKS CO
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 IRVING IRON WORKS CO filed Critical IRVING IRON WORKS CO
Application granted granted Critical
Publication of FR605323A publication Critical patent/FR605323A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F11/104—Treads
    • E04F11/112—Treads of metal or with an upper layer of metal

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Steps, Ramps, And Handrails (AREA)
  • Ladders (AREA)
FR605323D 1925-01-08 1925-09-22 Improvements to stairs Expired FR605323A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1142A US1553474A (en) 1925-01-08 1925-01-08 Stair tread

Publications (1)

Publication Number Publication Date
FR605323A true FR605323A (en) 1926-05-25

Family

ID=21694592

Family Applications (1)

Application Number Title Priority Date Filing Date
FR605323D Expired FR605323A (en) 1925-01-08 1925-09-22 Improvements to stairs

Country Status (4)

Country Link
US (1) US1553474A (en)
DE (1) DE451688C (en)
FR (1) FR605323A (en)
GB (1) GB245732A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3744204A (en) * 1972-04-24 1973-07-10 Gypsum Co Unit platform

Also Published As

Publication number Publication date
DE451688C (en) 1927-10-31
US1553474A (en) 1925-09-15
GB245732A (en) 1926-08-19

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