DK2795C -
Electrical signaling apparatus for the prevention of accidents on ships and the like, as well as for enabling general correspondence or drawing in certain directions.
- Google Patents
Electrical signaling apparatus for the prevention of accidents on ships and the like, as well as for enabling general correspondence or drawing in certain directions.
DK2795D
Electrical signaling apparatus for the prevention of accidents on ships and the like, as well as for enabling general correspondence or drawing in certain directions.
DK2795C
(en)
Electrical signaling apparatus for the prevention of accidents on ships and the like, as well as for enabling general correspondence or drawing in certain directions.
Electrical signaling apparatus for the prevention of accidents on ships and the like, as well as for enabling general correspondence or drawing in certain directions.
Improvements in Apparatus for Recording the Times of Employees Entering and Leaving their Place of Employment, and for Signalling Times for Commencing and Ceasing Work, or for the like Purposes.