FR535610A - élévateurs de trappes - Google Patents

élévateurs de trappes

Info

Publication number
FR535610A
FR535610A FR535610DA FR535610A FR 535610 A FR535610 A FR 535610A FR 535610D A FR535610D A FR 535610DA FR 535610 A FR535610 A FR 535610A
Authority
FR
France
Prior art keywords
hatch
lifts
hatch lifts
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
Zack Grass
William Clyde Ball
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 filed Critical
Application granted granted Critical
Publication of FR535610A publication Critical patent/FR535610A/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B17/00—Hoistway equipment
    • B66B17/14—Applications of loading and unloading equipment
    • B66B17/16—Applications of loading and unloading equipment for loading and unloading mining-hoist cars or cages
    • B66B17/20—Applications of loading and unloading equipment for loading and unloading mining-hoist cars or cages by moving vehicles into, or out of, the cars or cages
FR535610D 1921-05-18 1921-05-18 élévateurs de trappes Expired FR535610A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR535610T 1921-05-18

Publications (1)

Publication Number Publication Date
FR535610A true FR535610A (fr) 1922-04-19

Family

ID=8926277

Family Applications (1)

Application Number Title Priority Date Filing Date
FR535610D Expired FR535610A (fr) 1921-05-18 1921-05-18 élévateurs de trappes

Country Status (1)

Country Link
FR (1) FR535610A (fr)

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