Sreekanth US2706640

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Title: US2706640 - Text Title unavailable - see image for title

Inventor: Marshall

Issue Date: 1955-04

Current U.S. Class: 280/005.26: LAND VEHICLES; STEP OR ABUTMENT ASCENDING TYPE VEHICLE; With spider-type engaging means
280/005.3: LAND VEHICLES; STEP OR ABUTMENT ASCENDING TYPE VEHICLE; Jack-type attachment (i.e., elevating)


Forward References: 5 patents reference this one
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PDF
Patent  Pub.Date  Inventor Assignee Title
Buy PDF- 7pp US7669861 2010-03-02 Herreid; Vincent Dean   Stone block transporting crawler-climber
Buy PDF- 4pp USD540503 2007-04-10 Tsang; Wai Kay Ultrabright Limited Stair climbing wheel system
Buy PDF- 10pp US6357765 2002-03-19 Heien; Troy A.   Obstacle traversing wheel assembly
Buy PDF- 6pp US4264082 1981-04-28 Fouchey, Jr.; Charles J.   Stair climbing cart
Buy PDF- 6pp US4142732 1979-03-06 Boyd; Arthur C.   Hand truck


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