4 Utility Patents
#33,899 in Tokyo
#193,296 in Japan
Forward Citations = 65
Company Filing History:
Other
Sanwa Denki Kogyo Co., Ltd.

4. 1 out of 108
Honda Tsushin Kogyo Co., Ltd.
5. 1 out of 2
Telegraph and Telephone Corporation
where one patent can have more than one assignee
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