CH67201A (en )1914-11-16 Process for the manufacture of cement asbestos bricks and the like CH62755A (en )1914-02-02 process for the production of fire-proof and heat-insulating material AT57793B (en )1913-02-25 Method and device for the production of asbestos cement panels. CH66966A (en )1914-11-02 Process for the production of homogeneous pressed concrete piles DE173035C (en )1906-07-05 PROCESS FOR THE MANUFACTURE OF IRON CONCRETE STRUCTURES CH65479A (en )1914-06-16 Stone sleeve and method of making the same CH69997A (en )1915-08-02 Process for the reproduction of noble types of stone, majolica and clay tiles NL74C (en )1913-12-15 Process for the manufacture of imitation marble slabs CH71161A (en )1915-12-01 Process for the production of portland cement CH49382A (en )1911-02-01 Process for the production of magnesia cement CH67851A (en )1915-01-16 Process for the production of marble-like artificial stone slabs CH67763A (en )1915-01-16 Process and drum furnace for the continuous production of calcium cyanamide CH63964A (en )1914-03-02 Process for the production of cement in rotary kilns CH63963A (en )1914-03-02 Process for the manufacture of cement articles and machine for practicing the same CH67854A (en )1915-04-01 Process for the manufacture of concrete piles CH61865A (en )1913-10-16 Process and device for the production of molded artificial stone CH66777A (en )1914-10-16 Process for the manufacture of pipe fittings CH61637A (en )1913-10-01 Hollow brick for the production of T-beams and ceilings CH65872A (en )1914-07-16 Process for the production of concrete or reinforced concrete piles CH72152A (en )1916-04-01 Method and device for the production of sand-lime bricks CH58351A (en )1913-03-01 Process for the production of artificial building blocks CH73169A (en )1916-08-16 Process for the production of insulating material for walls and floors CH61633A (en )1913-10-01 Process for the production of ceiling formwork CH51068A (en )1911-07-17 Process for the production of artificial stone slabs CH50173A (en )1911-05-01 Process for the production of artificial stone slabs