DK22744C - Device for Telephoning to and from Running Railways and the like. - Google Patents

Device for Telephoning to and from Running Railways and the like.

Info

Publication number: DK22744C
Authority: DK; Denmark
Prior art keywords: telephoning; railways; running; running railways
Prior art date: 1915-08-21

Application number

Other languages

Danish (da)

Inventor

Karl Hjalmar Warfvinge

Victor Gabriel Werner

Original Assignee

Karl Hjalmar Warfvinge

Victor Gabriel Werner

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.)

1915-08-21

Publication date

1918-01-14

1918-01-14 Application granted granted Critical

1918-01-14 Publication of DK22744C publication Critical patent/DK22744C/en

Links

DK22744D 1915-08-21 Device for Telephoning to and from Running Railways and the like. DK22744C (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SE22744X		1915-08-21

Publications (1)

Publication Number	Publication Date
DK22744C true DK22744C (en)	1918-01-14

Family

ID=28036621

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK22744D DK22744C (en)	1915-08-21		Device for Telephoning to and from Running Railways and the like.

Country Status (1)

Country	Link
DK (1)	DK22744C (en)

0
- DK DK22744D patent/DK22744C/en active

Similar Documents

Publication	Publication Date	Title
DK22744C (en)	1918-01-14	Device for Telephoning to and from Running Railways and the like.
DK22248C (en)	1917-07-09	Device for Telephoning from and to Railway trains and the like which are in Motion.
DK23237C (en)	1918-07-08	Device for Telephoning from and to Railway trains and the like, which are in Motion.
DK22210C (en)	1917-06-25	Connecting device for railway rails and the like.
DK19153C (en)	1914-08-24	Securing device for Railways.
DK19859C (en)	1915-02-22	Mouthpiece for Retorts and the like.
DK20000C (en)	1915-03-22	Train protection device.
DK19298C (en)	1914-09-28	Swelling system for Railways.
DK21242C (en)	1916-05-29	Telephone system to and from a running Train and the like.
DK17984C (en)	1913-10-20	Securing device for Railways.
DK22139C (en)	1917-05-21	Railway sleeper.
DK22710C (en)	1917-12-31	Multiple Power Rail Device Above Earth.
DK19188C (en)	1914-08-31	Train safety device.
DK19443C (en)	1914-11-02	Relay device.
DK19942C (en)	1915-03-08	Ventilation device for Møllesten.
DK32984C (en)	1924-03-24	Amplifier system.
DK20441C (en)	1915-08-16	Fastening device for ties and the like.
DK19954C (en)	1915-03-15	Procedure for making Water clear and germ-free.
DK19678C (en)	1915-01-04	Telephone system.
CH69104A (en)	1915-06-01	Train protection device
DK22093C (en)	1917-04-30	Addition apparatus.
DK14903C (en)	1911-08-07	Sound signaling device for Railways.
DK20121C (en)	1915-05-03	Conversion device for Automobiles and the like.
DK18956C (en)	1914-06-29	Device for Microphones.
DK19820C (en)	1915-02-15	Connecting device.