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公开(公告)号:US1787047A
公开(公告)日:1930-12-30
申请号:US39206129
申请日:1929-09-12
Applicant: LOETSCHER EMIL C
Inventor: LOETSCHER EMIL C
IPC: D21F9/00
CPC classification number: D21F9/00
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32.Process for manufacturing building material of varying densities 失效
Title translation: 用于制造不同密度的建筑材料的制造方法公开(公告)号:US1780623A
公开(公告)日:1930-11-04
申请号:US38119729
申请日:1929-07-26
Applicant: LOETSCHER EMIL C
Inventor: LOETSCHER EMIL C
IPC: D21J1/00
CPC classification number: D21J1/00
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公开(公告)号:US1713187A
公开(公告)日:1929-05-14
申请号:US15168526
申请日:1926-11-30
Applicant: LOETSCHER EMIL C
Inventor: LOETSCHER EMIL C
IPC: B43K5/04
CPC classification number: B43K5/04
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公开(公告)号:US1662151A
公开(公告)日:1928-03-13
申请号:US14902126
申请日:1926-11-18
Applicant: LOETSCHER EMIL C
Inventor: LOETSCHER EMIL C
CPC classification number: E06B3/74 , E06B2003/7071
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公开(公告)号:US1999243A
公开(公告)日:1935-04-30
申请号:US44911630
申请日:1930-05-02
Applicant: LOETSCHER EMIL C
Inventor: LOETSCHER EMIL C
IPC: A47B96/20
CPC classification number: A47B96/201 , A47B96/206 , A47B2200/001 , Y10T428/22
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公开(公告)号:US1972307A
公开(公告)日:1934-09-04
申请号:US59047532
申请日:1932-02-02
Applicant: LOETSCHER EMIL C
Inventor: LOETSCHER EMIL C
CPC classification number: B32B27/00
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公开(公告)号:US1938917A
公开(公告)日:1933-12-12
申请号:US43272230
申请日:1930-03-03
Applicant: LOETSCHER EMIL C
Inventor: LOETSCHER EMIL C
CPC classification number: D21J1/16 , Y10T428/2495 , Y10T428/31946 , Y10T428/31982
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公开(公告)号:US1887691A
公开(公告)日:1932-11-15
申请号:US56774831
申请日:1931-10-08
Applicant: LOETSCHER EMIL C
Inventor: LOETSCHER EMIL C
CPC classification number: A47B96/205 , A47B96/206 , A47B2200/001 , B27D1/00
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公开(公告)号:US1876330A
公开(公告)日:1932-09-06
申请号:US58975632
申请日:1932-01-29
Applicant: LOETSCHER EMIL C
Inventor: LOETSCHER EMIL C
CPC classification number: B29C70/70 , B27D1/08 , B29C2793/0081 , B29D99/0039 , B29L2031/441 , Y10T156/1028
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公开(公告)号:US1863800A
公开(公告)日:1932-06-21
申请号:US52977431
申请日:1931-04-13
Applicant: LOETSCHER EMIL C
Inventor: LOETSCHER EMIL C
IPC: B27D1/08
CPC classification number: B27D1/08 , Y10T156/103 , Y10T156/1066
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