ES87443A1 -
A whistle system that works automatically by steam or compressed gases, intended for the service of railways, navigation, aviation and other uses.
- Google Patents
A whistle system that works automatically by steam or compressed gases, intended for the service of railways, navigation, aviation and other uses.
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.)
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.)
Limon Francois
Original Assignee
Limon Francois
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 Limon FrancoisfiledCriticalLimon Francois
Priority to ES87443ApriorityCriticalpatent/ES87443A1/en
Publication of ES87443A1publicationCriticalpatent/ES87443A1/en
ES87443A1923-11-231923-11-23
A whistle system that works automatically by steam or compressed gases, intended for the service of railways, navigation, aviation and other uses.
ExpiredES87443A1
(en)