SU887075A1 - Устройство дл сверлени отверстий - Google Patents

Устройство дл сверлени отверстий Download PDF

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Publication number
SU887075A1
SU887075A1 SU802865310A SU2865310A SU887075A1 SU 887075 A1 SU887075 A1 SU 887075A1 SU 802865310 A SU802865310 A SU 802865310A SU 2865310 A SU2865310 A SU 2865310A SU 887075 A1 SU887075 A1 SU 887075A1
Authority
SU
USSR - Soviet Union
Prior art keywords
drilling holes
drilling
holes
resource
work
Prior art date
Application number
SU802865310A
Other languages
English (en)
Inventor
Сергей Александрович Демин
Original Assignee
За витель
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by За витель filed Critical За витель
Priority to SU802865310A priority Critical patent/SU887075A1/ru
Application granted granted Critical
Publication of SU887075A1 publication Critical patent/SU887075A1/ru

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  • Drilling And Boring (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Description

та, в результате чего ресурс их работы увеличитс .

Claims (1)

1. Патент США № 2558814, кл. 77-62, 1967.
SU802865310A 1980-01-07 1980-01-07 Устройство дл сверлени отверстий SU887075A1 (ru)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU802865310A SU887075A1 (ru) 1980-01-07 1980-01-07 Устройство дл сверлени отверстий

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU802865310A SU887075A1 (ru) 1980-01-07 1980-01-07 Устройство дл сверлени отверстий

Publications (1)

Publication Number Publication Date
SU887075A1 true SU887075A1 (ru) 1981-12-07

Family

ID=20870366

Family Applications (1)

Application Number Title Priority Date Filing Date
SU802865310A SU887075A1 (ru) 1980-01-07 1980-01-07 Устройство дл сверлени отверстий

Country Status (1)

Country Link
SU (1) SU887075A1 (ru)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4964475A (en) * 1988-01-28 1990-10-23 Fischerwerke Artur Fischer Gmbh & Co Kg Drilling device for producing drill holes with undercut

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4964475A (en) * 1988-01-28 1990-10-23 Fischerwerke Artur Fischer Gmbh & Co Kg Drilling device for producing drill holes with undercut

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