"I might just as well update the metalfile and ruler as well, this list is what i believe are from then on. I am sure there are variations outside the dates" I will let this list stand, good luck!
1884 January first, Karl Elsener openes a buisness.
1891 First contract to deliver Solidier knives to the Swiss Army.
1897 June 12th official registration for the elegant Officiers knife, developed by the founder.
1902 New models that now got woodsaw, scissors, nickelsilver
tweezers, toothpick and bail.
1909 Metal inlay cross on red fiber scales.
1923 Stainless steel available.
1931 Crossbow symbol on blades.
1937 Cellidor scales replace fiber.
1939 Crossbow emblem replaced with cross.
1942 New screwdriver with cap opener.
1946 New patented can opener(used today by Wenger)
New improved can opener with small screwdriver tip, aluminium dividers replace nickelsilver.New flat screwdriver with cap opener and cable stripper/bender.
1951 Flat screwdriver with cap opener
1952 Square Phillips screwdriver in the corkscrew place, long nailfile with cleaner, metal saw, fish shell scraper and hook disgorger.
1957 Tweezer with aluminium head/holder.
1961 New reamer awl with cutting edge, hidden rivets.
1968 Bail get officially replaced
1973 Magnifier and phillips screwdriver, small blade without clip.
1973 New shape metalfile tip(nail cleaner) (in general
1975 Fine screwdriver backside tool, this type pre the 1985 type.
1975 Ruler on the fish scaler with hook disgorger
1978 Tweezer get plastic head/holder
1980 Inlay made of stainless and not nickelsilver, round phillips(up until this date its been forged)
1982 Combination tool on 84mm knives.
1983 Patented mini screwdriver.
1985 ball point
pen, fine screwdriver, chisel, reamer with sewing eye. Flat screwdriver with cap opener can be used from 90 degrees.
1986 Plier with wire cutters and combination tool on 91mm knives.
1987 Camoflage scales
1990 Swiss Watch in the scale
1991 Multi purpose hook and needle, corkscrew
replaced with solid model.
1991 Key ring attached on spring.
1992 Golfer blade, solid round phillips.
1994 Matt nylon scales. Corkscrew without decoration groove.
1995 Cable crimper tool on plier.
1998 Carl Elsener
and Giaritta Franco inventors of CyberTool.
1999 Bit key and holder
1999 Translucent scales.
1999 3 month modified keyring attachment on spring, improved 90 degree flat screwdriver with notch to prevent accidental closing.
2000 Altimeter electronics, long files removed
2000 New attaching for keyring on spring or modified for todays modern.
2001 Voyager, small tweezer and new scales.
2002 Patent application show LED module.
2003 Glowing scales, last year for tweezer with metal holder.
2004 New plastic magnifier.
2005 Travel electronics, metal file made of stainless. new blade stampings.
2008 New Soldier
knife- 111mm with two component scales. Improved blade and locking mechanism.
2010 New Soldier knife for the Dutch army. Special function beltcutter with lock. Also a civilian model.
2011 Storage on Victorinox electronic with drastic higher capacity. Slim, Slim Duo and Secure