DE157961A - - Google Patents

Info

Publication number
DE157961A
DE157961A DE157961A DE 157961 A DE157961 A DE 157961A DE 157961 A DE157961 A DE 157961A
Authority
DE
Germany
Prior art keywords
hammer
air pressure
hammers
bar
mechanics
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.)
Pending
Application number
Other languages
German (de)
English (en)

Links

Family

ID=

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