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FR556695A - Perfectionnements aux échelles - Google Patents

Perfectionnements aux échelles

Info

Publication number
FR556695A
FR556695A FR556695DA FR556695A FR 556695 A FR556695 A FR 556695A FR 556695D A FR556695D A FR 556695DA FR 556695 A FR556695 A FR 556695A
Authority
FR
France
Prior art keywords
upgrades
scales
scales upgrades
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
English (en)
Inventor
Benedict Eugene Willett
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
Priority claimed from US525182A external-priority patent/US1439308A/en
Priority claimed from DEW62129D external-priority patent/DE395226C/de
Application filed filed Critical
Application granted granted Critical
Publication of FR556695A publication Critical patent/FR556695A/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
    • E06C1/397—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders characterised by having wheels, rollers, or runners
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
    • E06C1/39—Ladders having platforms; Ladders changeable into platforms
    • E06C1/393—Ladders having platforms foldable with the ladder
FR556695D 1921-12-27 1922-09-29 Perfectionnements aux échelles Expired FR556695A (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US525182A US1439308A (en) 1921-12-27 1921-12-27 Windshield cleaner
GB24712/22A GB207897A (en) 1921-12-27 1922-09-12 Improvements in and relating to step ladders
DEW62129D DE395226C (de) 1921-06-06 1922-09-19 Zusammenklappbare Stehleiter mit Plattform

Publications (1)

Publication Number Publication Date
FR556695A true FR556695A (fr) 1923-07-25

Family

ID=34743211

Family Applications (1)

Application Number Title Priority Date Filing Date
FR556695D Expired FR556695A (fr) 1921-12-27 1922-09-29 Perfectionnements aux échelles

Country Status (2)

Country Link
FR (1) FR556695A (fr)
GB (1) GB207897A (fr)

Also Published As

Publication number Publication date
GB207897A (en) 1923-12-12

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