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公开(公告)号：US1243464A
公开(公告)日：1917-10-16
申请号：US6751815
申请日：1915-12-18
Applicant: DIAMOND POWER SPECIALITY
Inventor： WATSON GLENN W
CPC classification number: F28G3/166
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公开(公告)号：US1225292A
公开(公告)日：1917-05-08
申请号：US6727015
申请日：1915-12-16
Applicant: DIAMOND POWER SPECIALITY
Inventor： WATSON GLENN W
CPC classification number: F28G3/166
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