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US1965223A
|
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Lift door
|
|
US1985847A
|
|
Door mechanism
|
|
US1976913A
|
|
Car doorlock
|
|
US1916674A
|
|
Lift mechanism
|
|
US1950837A
|
|
Car doorlock
|
|
US1937769A
|
|
Adjustable hold-down device
|
|
US1982275A
|
|
Track bracket and stop
|
|
US1982270A
|
|
Supporting means for car doors
|
|
US1955423A
|
|
Door locking device
|
|
US1922337A
|
|
Track and support therefor
|
|
US1963821A
|
|
Track bracket
|
|
US1943640A
|
|
Car construction
|
|
US1898583A
|
|
Car door elevating mechanism
|
|
US1985867A
|
|
Elevating device for car doors
|
|
US1898582A
|
|
Door elevating construction
|
|
US1874227A
|
|
Door elevating mechanism
|
|
US1897563A
|
|
Door elevating construction
|
|
US1951539A
|
|
Metallic door construction
|
|
US1933090A
|
|
Supporting means for car doors
|
|
US1881401A
|
|
Stop for car doors
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