ES74757A1 - Mecanismo diferencial de avance para perforadoras giratorias de roca. - Google Patents

Mecanismo diferencial de avance para perforadoras giratorias de roca.

Info

Publication number
ES74757A1
ES74757A1 ES74757A ES74757A ES74757A1 ES 74757 A1 ES74757 A1 ES 74757A1 ES 74757 A ES74757 A ES 74757A ES 74757 A ES74757 A ES 74757A ES 74757 A1 ES74757 A1 ES 74757A1
Authority
ES
Spain
Prior art keywords
advance mechanism
rock drills
rotary rock
differential advance
differential
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES74757A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Schuckertwerke AG
Siemens Corp
Original Assignee
Siemens Schuckertwerke AG
Siemens Corp
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 Siemens Schuckertwerke AG, Siemens Corp filed Critical Siemens Schuckertwerke AG
Priority to ES74757A priority Critical patent/ES74757A1/es
Publication of ES74757A1 publication Critical patent/ES74757A1/es
Expired legal-status Critical Current

Links

ES74757A 1920-07-07 1920-07-07 Mecanismo diferencial de avance para perforadoras giratorias de roca. Expired ES74757A1 (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES74757A ES74757A1 (es) 1920-07-07 1920-07-07 Mecanismo diferencial de avance para perforadoras giratorias de roca.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES74757A ES74757A1 (es) 1920-07-07 1920-07-07 Mecanismo diferencial de avance para perforadoras giratorias de roca.

Publications (1)

Publication Number Publication Date
ES74757A1 true ES74757A1 (es) 1920-11-16

Family

ID=64244829

Family Applications (1)

Application Number Title Priority Date Filing Date
ES74757A Expired ES74757A1 (es) 1920-07-07 1920-07-07 Mecanismo diferencial de avance para perforadoras giratorias de roca.

Country Status (1)

Country Link
ES (1) ES74757A1 (es)

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