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Patent#	USPTO	Date	Year	Inventor	Patent Title	Comments
105,252	USPTO	July 12	1870	Robertson	Battery Insulator	Earliest style of battery rest
920,105	USPTO	May 4	1909	Backus	Lock and Check Hook	Cast iron parts proved fragile
1,021,343	USPTO	Mar 26	1912	Tingley	Locking Clamp	Predecessor to the Backus Novelty Locking Clamp
1,156,739	USPTO	Oct 12	1915	Backus	Locking Clamp	Backus's Universal Locking Clamp
1,194,957	USPTO	Aug 15	1916	Cochrane	Insulator	"Cochrane Bells" multipart suspension insulator
1,304,623	USPTO	May 27	1919	Sullivan & Taylor	Glass	Corning Pyrex glass formula
1,373,112	USPTO	Mar 29	1921	Backus	Check Lock	Improved sheet-metal version of No. 920,105
1,623,301	USPTO	Apr 5	1927	Brenner	Heat-Resisting Glass	Fry Foval opalescent glass