ES72538A1 -
Improvements in the manufacture of reinforced or unreinforced cement pipes or pipes, through the use of centrifugal force.
- Google Patents
Improvements in the manufacture of reinforced or unreinforced cement pipes or pipes, through the use of centrifugal force.
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.)
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Individual
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Individual
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Priority to ES72538ApriorityCriticalpatent/ES72538A1/en
Publication of ES72538A1publicationCriticalpatent/ES72538A1/en
ES72538A1920-02-061920-02-06
Improvements in the manufacture of reinforced or unreinforced cement pipes or pipes, through the use of centrifugal force.
ExpiredES72538A1
(en)