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公开(公告)号：US1637207A
公开(公告)日：1927-07-26
申请号：US64055923
申请日：1923-05-21
Applicant: PERCY WHITEHOUSE WALTER
Inventor： PERCY WHITEHOUSE WALTER
CPC classification number: B29C47/062 , B29C47/0023 , B29C47/064 , B29C47/065 , B29C47/265
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2.发明授权Construction of wear-resisting and nonslipping surfaces, such as tire covers, stair treads, or the like 失效耐磨和非滑动表面的构造，例如轮胎盖，楼梯踏面等
公开(公告)号：US1426800A
公开(公告)日：1922-08-22
申请号：US49737821
申请日：1921-08-31
Applicant: PERCY WHITEHOUSE WALTER
Inventor： PERCY WHITEHOUSE WALTER
IPC: B60C11/18
CPC classification number: B60C11/18 , Y10T428/24074 , Y10T428/24091 , Y10T428/249942
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