Electric switching mechanism

C Charles - US Patent 3,086,090, 1963 - Google Patents
The primary object of the present invention is to pro vide improved switching mechanism of
the above char acter which may be operated with equal facility by either hand of the operator …
被引用次数：23 相关文章

[引用][C] Electric switching mechanism

C Charles - US Patent 3,086,090, 1963 - freepatentsonline.com
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