US2151965A - Hair clipper - Google Patents

Hair clipper Download PDF

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Publication number
US2151965A
US2151965A US134986A US13498637A US2151965A US 2151965 A US2151965 A US 2151965A US 134986 A US134986 A US 134986A US 13498637 A US13498637 A US 13498637A US 2151965 A US2151965 A US 2151965A
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Prior art keywords
plate
edges
shearing
hair
clipping
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Expired - Lifetime
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US134986A
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John A Hanley
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CLIPSHAVE Inc
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CLIPSHAVE Inc
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26BHAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/02Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
    • B26B19/04Cutting heads therefor; Cutters therefor; Securing equipment thereof
    • B26B19/042Long hair cutters or older types comprising a cutting grid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26BHAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/38Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/3846Blades; Cutters

Description

J. A. HANLEY HAIR CLIPPER March 28', '1939.
Filed April 5, 1957 m J ,4 W y. J/mm 9 0 W mm a am j m y m f J m j 74 m 3 mm i .M NM1 w .l m 9 w i 30 5 1 Hin f3 f 4 D: all@ 3 'ai I z l I W, u HUII ff. .HIJ Dunllnu. T L W -||L d 4 M JHI M u 1,5 y v. .I w 3% www. .3 F l INVENTOR John A.Harz@ BY w ATTORNEYS Patented Mar. 2S, 1939 PATENT OFFICE HAIR CLIPPER John A. Hanley, Noroton, Conn., assigner to Clipshave Inc., Port Chester, N. Y., a corporation of New York Application April 5, 1937 Serial No. A134,986
19 Claims.
My present invention relates to hair clippingv apparatus and is more especially concerned with apparatus of the above type for use as a razor in clipping hair stubble, although it is useful also for shearing longer hair. The invention constitutes an improvement on my prior applications Serial No. 739,432 filed August 11, 1934 on which Patent No. 2,077,367 was granted on April 13, 1937 and Serial No. 5319, led February 7, 1935 on which Patent No. 2,102,529 was granted on December 14, 1937 and accomplishes all of the fundamental objects of said 'prior applications.
Among other objects of the invention are to provide a clipping head for a device of the above type, easily applied by resort to a single thrust for cooperative relation with respect to the carrying handle and the motor thereof, and without the need for auxiliary 'latching plates or mounting screws that might exert distorting stresses upon the clipping instrumentalities, and inherently. anording protection to the user against the possibility of abrasion.
A further object -is to provide a clipping head of the above type in which the pressure exerted in use is localized with greater effectiveness along the region at which the clipping actually occurs,
lwithout likelihoodv oi applying frictional loadover a wider area.
In thel accompanying drawing in which is shown one of various possible embodiments of the several features of the invention:
Fig. 1 is a plan view of the clipping head with parts broken away to show the inner plate,
Fig. 2 is a fragmentary side elevation of the mounted clipping head,
. Fig. 3 is a transverse sectional view taken along line 3 3 of Flg. 1,
Fig. 4 is a transverse sectional view on a greatly enlarged scale taken on line 4--4 of Fig. l,
Fig. 5 is afragmentary view on a larger scale of a detail of the outer or sheathing plate prio to lnturning the latter, and
Fig. 6 is a cross sectional view taken on line 6-6 of Fig. 4.-
Referring now to the drawing, there is shown Athe general outline of a desirable form of insulating handle I0, which jserves as a casing tov house a suitable electric motor for oscillating thel operating lever I I, the extremity I2 of which protrudes through a corresponding port i3 in`the reduced forward endoi the casing. 'I'he motory 1934, although any other suitable motor may be employed. l v. l
The clipping head, in common with that of my prior Patent No. 2,102,529 includes an outer shear plate i4 having flanges l5 turned under the ser- 5 rated or toothed edges I6 of the inner plate I1 and sheathing the latter and has resilient latch means for mounting the assembly to the casing with said inturned flanges held against the casing end i0. In common with said earlier case 10 the serrations on the inner plate present shearing faces and the gaps between said serrations afford widened hair shedding gaps at the area below the shearing conformation and the outer or xed plate is slotted to present shearing con- 15 formations and shedding ports. Also in common with said earlier application the two plates are preferably of stainless' steel, the moving or inner plate being preferably of stock: of .015" to .020" in thickness and the outer plates may be 20 of resilient steel stock of from .008" to .010" in thickness.
The inner shear plate is preferably undercut, that is, the under or non-shearing area of the plate is of smaller width than the outer or shear- 25 ing face thereof, the edges being beveled as at I8, the forward ends of the teeth I6 being relatively sharp. 'I'he lateral walls of each tooth of the inner plate converge from the outer to the inner face thereof as appears at I9 in Fig. 6, to k30 aiord a lateral flare of the interdental spaces from the clipping to the shedding face thereof, Aand are longitudinally undercut at the troughs as at 20 (Fig. 4).
The slots in the fixed or outer shear plate Il, 35 as best shown in Fig. 5, are spindle-shaped, being preferably formed by means of formed milling cutters (not shown) to afford openings 2i oi.|` length and Width considerably less at the inner f face than the corresponding openings at the out- 40 er face, the walls of the slots shown at 22` extending through the thickness of the plate. The blank shown in Fig. 5 has inturned lateral flanges l5 extending about the beveled margins of the inner plate to afford clearance as at 23 45 with respect to the points of teeth I6 and clearf ance as at 24 with respect to the entire area of the beveled edge i8, the inturned flange being curved as at 25 for that purpose andbeing reversely curved therebeyond as at 26 for resilient 50 engagement as at 21 with the under face of the inner. plate; The fold edge 28 of the outer plate is nearerthe inner than the outer ends of the slots or notches so that as best shown in Fig. 4, the inturned lportions of slots 22 which extend 55 transversely of the inturned anges I5 of the outer plate extend substantially the full width of the beveled edges I8 of the inner plate and afford hair shedding gaps exposing the entire length of the undercut interclental spaces at the under face of the inner plate. The upper portions of slots 22 along the face of the plate I4 extend along the entire length of the shear teeth I6 on the upper face of the plate I'I.
As best shown in Fig. 4, the upper ends 22u of the slots 22 slope away from the troughs of the interdental spaces of the inner plate l1 and thelower or inner ends of the slots 22 extend outward from the undercut troughs 2d of the interdental spaces, as at 221,
By reference to Fig. 6, it will be seen that as a l consequence of the obliquely cut walls of teeth I6 and of slots 22, the lateral walls of said slots converge from the outer to the inner face of the outer plate I4 and the lateral walls of each tooth I6 of the inner plate converge at I9 from the shearing to the shedding face thereof, while the slots 22 along the inturned flanges I5 diverge laterally. i
Accordingly there are relatively wide entry ports for the hair at the upper face of plate I4, and the clippings pass through the surface of contact between the teeth I6 and slots 22 where the clipping occurs, to be readily shed through the longitudinally and laterally diverging interdental spaces of plate I4 and the similarly dverging walls of slots 22, for prompt discharge lfrom the apparatus, without likelihood of clogging.
As shown in the drawing, the body of the outer plate I4 between the inner ends 22 of the shearing slots thereof is convex or crowned as at 30, away from the inner plate to localize at the margins the pressure to be applied thereat in shearing. The metal 'of the main, expanse of the outer plate is preferably thinned by grinding at its clipping margins as at 3l, to afford enhanced resiliency thereat due to the resiliently applied pressure transmitted from the crowned or bowed region 30, for effective snug engagement with the teeth I6 of the'inner plate I4.
According to the present invention the inner shear plate I1v has rectangular tongues 33 struck out of the stock thereof, affording openings 34, saidtongues extending downward between the inner edges of the inturned flanges I5 of the outer plate and preferably in sliding engagement therewith as at 35. One of the functions of these tongues is to guide the reciprocating movement of the inner plate with respect to said flanges and therefore with respect to the outer plate I4 for effective shearing coaction. The points of the teeth I6 of 'the inner Vplate thus remain uniformly spaced from the folded edges 28 of the outer plate, as at 23. The tongues 33 extend into corresponding rectangular depressions 36 in the end of the handle casing, which depressions afford guideways therefor to assure rectilinear reciprocating movement of the inner plate I'I, in the operation of the motor, without any tendency to tilt or bind with respect to the outer plate.
For aiiixing the shearing head to the handleV casing, improved resilient latch means are preferably provided. In the specific embodiment shown, the latch means comprise clip members 3'I each of generally stave shape and of resilient metal, extending transversely across the respective ends of the outer or fixed plate I4 each being amxed to said plate near its center as at 38 and having its protruding ends 39 down-turned, and
curved inwardly to latch over corresponding narrow shoulders 4I) molded at the corresponding parts of the casing;
The clipping edges of the shearing head extend laterally beyond the casing but are preferably shielded by said casing, at their end edges. For that purpose, the casing has upstanding end ledges 4I substantially ush with the plane of the shearing head interposed therebetween but the gaps between said head and said ledges are bridged by the central strap portion of the respective clips"3`I, to guard against the entry of hair thereinto.
As it is preferred to spot Weld the mounting clip to the outer plate and as, in view of the narrowness of such clip it might be dii'cult to accomplish this effectively and yet have part of with the free edges of the respective extensionsA 42 so that spot welding as at 38 may be effected midway between the lateral edges of the clips. Y
It is seen that the clipping head assembly is readily applied to the carrying handle by simply superposing it thereover between ledges 4I and permitting the clip ends 39 resiliently to snap over the corresponding shoulders 40 on the handle. The mounting can thus be effected substantially by a single thrust, in which operation the inner plate is effectively brought by its guide tongues 33 into effective position upon the handle I0, with the operating lever end I2 extending into the central aperture 44 of plate I'I, and the strips 31 are brought into effective bridging relation over the protective ledges 4I on the handle casing.
The inner plate. I'I is resiliently pressed by flanges I5 against the outer plate I4 for snug contact at the marginal or clipping region. The handle end takes the pressure applied in use by the engagement of flanges I5 therewith, and such pressure tends to enhance the snugness of engagement at the shearing margins. The pressure applied in useis necessarily localized at said marginal regions and at the tangential flange portion 21, for effective operation with a minimum of load on the motor. area of the shedding instrumentalities there is no likelihood of clogging of the shearing teeth with clippings and the device need not be frequently taken apart for cleaning. By reason of the central mounting of the resilient latching clipsy no distorting pressure is applied to the clipping plates, the coaction of which at the superposed clipping teeth is in no way impaired by distortion or otherwise, as it might be if substantial By reason of the widening.
localized pressure were applied in such mounting. y
It will thus be seen that there is herein described apparatus in which the several features Having thus described my invention, what'I claim as new and desire to secure by Letters Patent isz- 1. In a hair clipping apparatus of the type comprising an inner serrated plate and an outer plate Y .having an inturned flange sheathing the serrated plate and slotted to form shearingteeth coacting `with those of said serrated plate; the combination in which the shearing coaction between the twol plates is localized at the margins thereof, in which the sheathing flange is curved for resilient engagement with the under face of the inner plate and in which the outer face of the inner yplate is free from engagement with the outer plate beyond the shearing margins of contact.
2. A hair clipping head comprising a toothed reciprocating inner plate having a shearing face, an edge inwardly bevelled therefrom and presenting hair shedding ports through the interdental spaces at the bevelled edge and at the under face thereof, a coacting fixed shearing plate having an inturned iiange enclosing the serrated edge and slotted for clipping coaction with said teeth, said outer plate engaging the inner plate at said slotted regions, said inturned flange being curved for resilient engagement with the under face of said inner plate, said plates being free from engagement with each other at areas other than the recited areas of contact. f
3. A hair clipping head comprising a generally rectangular inner plate having shear teeth therethrough along its opposite edges, said plate providing hair shedding interdental spaces at the under face thereof, an outer plate having 1nturned flanges enclosing the toothed edges of the inner plate, saidv flanges being slotted across 4the respective bases thereof, to afford shearing edges at the main area thereof coacting with those of the inner plate and toafford hair shedding ports coacting with the shedding spaces of said inner plate, said'fianges being curved for resilient engagement with the under face of the inner plate to hold said inner plate resiliently against the outer or shearing face of the outer plate. 4. A hair clipping head comprising an inner plate having shear teeth therethrough along its opposite edges, said plate providing hair shedding interdental spaces at the under face thereof, an outer plate having inturned flanges enclosing the toothed edges of the inner plate, said flanges being slotted across the respective bases thereof to aord shearing edges at the main area thereof coacting with those of the inner plate and to afford hair shedding ports coacting 'with the shedding spaces of saidl inner plate, the under face of said inner plate beingresiliently engaged by said flanges and the outer face of said inner plate being held against the outer or shearing face of the outer plate, the outer plate being bowed away from the inner plate through the width thereof between the shearing lengthsv of the slots therein.
5. A hair clipping head comprising a fiat generally rectangular inner plate having shear teeth therethrough along its opposite edges, said plate providing hair shedding interdental spaces at the under face thereof, an outer plate having inturned flanges enclosing the toothed edges of the inner plate, said flanges being slotted through the respective bases thereof to afford shearing edges at the main area thereof coacting with those of the inner plate and to afford hair shedding ports coacting with the shedding spaces of said inner plate, said inner plate being resiliently held by said flanges against the outer or shearing face of the outer plate, the inner plate having its edges bevelled inward from the cutting to the shedding face thereof to present at the outer face thereof relatively sharply pointed teeth guarded by said inturned flanges.
6. A hair clipping head comprising a flat generally rectangular inner plate having shear teeth therethrough along its opposite edges, said plate being undercut to provide hair shedding interdental spaces at the underface thereof, an outer or fixed plate having inturned flanges enclosing the toothed edges of the inner plate, said flanges being slotted across the respective bases thereof to afford shearing edges at the main area thereof coacting with those of the inner plate and't'o afford hairshedding ports coacting with the shedding spaces of said inner plate, said inner plate being resiliently held by said flanges against the outer or shearing face of the outer plate, the lateral edges of the outer plate being bevelled at the portions thereof registering with said shedding ports. 4
'7. A hair clipping apparatus comprising a handle member, a shearing head removably mounted thereon, said head comprising an inner shear plate having serrations therethrough at its edge and presenting at said serrations a shearing face and a shedding face, said plate having median tongues extending inward therefrom and lodged in guiding depressions of corresponding width in the forward end of said handle, an outer plate having clipping conformations coacting with the shearing faces of said serrations, and resilient latch means for attaching said outer plate to said handle with said inner plate guided by said tongues, for reciprocation in resilient contact with said outer plate.
8. A hair clipping head comprising an inner plate serrated at one edge thereof, said serrations extending through the thickness of said plate and aording shearing edges at one face thereof and hair shedding gaps at the other face thereof, an outer shear plate superposed over and having a flange embracing the serrated edge of the inner plate, said outer plate being slotted across the embracing edge thereof to aiord shearing edges coacting with those of said inner plate, and tongues struck inward from the inner plate and protruding downward beyond the iiange 'of the outer plate for coaction with corresponding guides in a handle.
9. A. hair clipping head comprising an inner plate serrated at one edge thereof, said serrations extending through the thickness .of said plate ing downward'beyond the flange of the outer plate-for coaction. with corresponding guides in the handle, said tongues engaging the edge of said inturned flange.
10. A hair clipping apparatus comprising aV motor enclosing handle casing, a hair clipping head removably mounted on the end of said casing, said head comprising the'a'ssembly of an inner shear plate having serrations along its opposite edges presenting shearing edges at one face thereof and, hair shedding gaps at the other face thereof and an outer plate having inturned flanges embracing said serrated edges, said outer plate being slotted to present shearing and shedding conformations in registry with those of the inner plate, tongues struck inward from said inner plate and extending between the ilanges of the outer plate and in contact with the edges of the latter into corresponding guideways at the end of the handle, operating means extending from said motor through the end of said handle into a corresponding central aperture in the inner plate for reciprocating the latter in a movement guided by the coaction of said instruck tongues and said handle end and resilient latch means releasably mounting said outer plate upon said handle casing.
11. 'I'he combination recited in claim 10 in which the latch means comprises downwardly extending tongues unitary with the outer plate and latched over corresponding shoulders on the handle casing.
12. A hair clipping head assembly comprising inner and outer shear plates, the latter having lateral flanges embracing the edges of the former, the inner plate having serrations and the outer plate having slots to afford coacting shear edges and coacting shedding ports, the inner plate having protruding conformations unitary therewith to position the latter and the outer plate having lateral resilient tongues unitary therewith and protruding downward from near the ends thereof for latching connection to a carrying handle.
13. A hair clipping head assembly comprising inner and outer shear plates, the latter having lateral flanges embracing the edges of the former, the inner plate having serrations and the outer plate having slots to afford coacting shear edges and coacting shedding ports, the,
inner plate having protruding conformations unitary therewith to position the latter, the outer plate having resilient mounting clips affixed to the ends thereof, presenting lateral downwardly extending res'ilient tongues for latching attachment to a handle.
14. A hair clipping head. assembly comprising inner and outer shear plates, the latter having lateral ilanges embracing the edges of the former, the inner plate having serrations and the outer plate having slots to aord coacting shear edges and coacting shedding ports. the inner plate having protruding conformations unitary therewith to position the latter, and mounting clips extending transversely across the ends of the outer plate, afiixed thereto near the middles thereof and presenting downwardly extending resilient tongues adapted to be latched to a handle.
15. A hair clipping head assembly comprising inner and outer shear plates, the latter having lateral ilanges embracing the edges of the former, the inner plate having serrations and the outer plate having slots to afford coacting shear edges and coacting shedding ports, the inner plate having protruding conformations unitary therewith to position the latter and clip animos members comprising strips of resilient metal extending transversely aoross the respective ends of the outer plate and permanently aiiixed at their middles centrally of the respective ends of the outer plate and presenting down-turned tongues for resilient latching engagement to a carrying handle.
16. I n a hair clipping head, the combination of an outer xed plate of thin sheet metal stock presenting lateral shearing conformations, said plate having a shortcentral extension at each end thereof beyond said shearing conformations, mounting clip strips of resilient metal extending at their outer edges along said extensions, said strips being spot welded at their respective middles midway of the widths of said extensions, each of said strips presenting downturned resilient ends for mounting on a. carrying handle.
17. A hair shearing apparatus comprising an insulating casing having an electric motor therein with an operating reciprocatingI lever protruding through a corresponding port in one end of said casing, a clipping head assembly removably mounted upon the end of said casing and presenting an inner plate and an outer plate, the latter having inturned iianges extending about, the edges of the former, the inner plate being serrated and the outer plate being slotted at the inturned edges thereof to aord coacting shearing edges and coacting shedding ports, said inner plate having a central aperture fitted over the end of the operating lever end, the inner plate having down-struck tongues extending into corresponding guideways in the end of the handle casing, the clipping conformations of said head extending beyond the lateral surface of the handle casing, said casing having integral upstanding ledges confining the ends of the clipping assembly therebetween and means for resiliently latching said assembly to said handle casing, said vmeans comprising resilient mounting clip pieces extending across the ends of the outer plate, aiiixed thereto, and bridging the gaps between said ledges and said clipping head assembly, said clips having downwardly extending resilient ends and said casing having shoulders over Which-said ends are resiliently latched.
18. The shearing apparatus as claimed in claim 17 in which the outer plate has narrow extensions interposed between the tops of the respective ledges and the mounting clips which are centrally spot welded thereto.
19. A hair clipping head comprising an inner plate having shear teeth along its lateral edges and an outer plate having inturned flanges embracing said toothed edges and transversely slotted to aiord shearing edges coacting with those of said teeth, said flanges having parallel edges facing each other, and downwardly extending lugs rigid with said inner plate extending between and engaging said iiange edges and serving to retain said inner plate in symmetrical relation with respect to said outer plate with the points of the teeth uniformly spaced from the fold. edges of said outer plate.
JOHN A. HANLEY.
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US4050199A (en) * 1975-04-28 1977-09-27 U.S. Philips Corporation Method of grinding a toothed cutter for hair-cutting apparatus
US20150047203A1 (en) * 2012-04-03 2015-02-19 Koninklijke Philips N.V. Blade set for hair cutting appliance and method for its manufacture
WO2015074882A1 (en) * 2013-11-22 2015-05-28 Koninklijke Philips N.V. Linkage unit and hair cutting appliance
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WO2016001019A1 (en) * 2014-07-04 2016-01-07 Koninklijke Philips N.V. Blade set, hair cutting appliance, and related manufacturing method
US20160229072A1 (en) * 2013-10-01 2016-08-11 Koninklijke Philips N.V. Blade set, hair cutting appliance, and related manufacturing method
CN105904488A (en) * 2015-02-25 2016-08-31 皇家飞利浦有限公司 Stationary blade, blade set, and hair cutting appliance
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US9987759B2 (en) 2013-11-22 2018-06-05 Koninklijke Philips N.V. Mounting unit and hair cutting appliance
US20180257248A1 (en) * 2016-10-12 2018-09-13 Rangpan Wu Reciprocating Electric Razor Head
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US4050199A (en) * 1975-04-28 1977-09-27 U.S. Philips Corporation Method of grinding a toothed cutter for hair-cutting apparatus
US20150047203A1 (en) * 2012-04-03 2015-02-19 Koninklijke Philips N.V. Blade set for hair cutting appliance and method for its manufacture
US9873203B2 (en) * 2012-04-03 2018-01-23 Koninklijke Philips N.V. Blade set for hair cutting appliance and method for its manufacture
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US10300618B2 (en) 2012-04-03 2019-05-28 Koninklijke Philips N.V. Blade set for hair cutting appliance and method for its manufacture
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US10800054B2 (en) 2013-10-01 2020-10-13 Koninklijke Philips N.V. Blade set and hair cutting appliance
US10882198B2 (en) * 2013-10-01 2021-01-05 Koninklijke Philips N.V. Blade set, hair cutting appliance, and related manufacturing method
JP2016531632A (en) * 2013-10-01 2016-10-13 コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. Blade set and hair cutting device
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US10596715B2 (en) 2013-10-01 2020-03-24 Koninklijke Philips N.V. Blade set and hair cutting appliance
RU2690061C2 (en) * 2013-10-01 2019-05-30 Конинклейке Филипс Н.В. Set of blades and device for hair cutting
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US20160271814A1 (en) * 2013-11-22 2016-09-22 Koninklijke Philips N.V. Hair cutting appliance and blade set
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US9987759B2 (en) 2013-11-22 2018-06-05 Koninklijke Philips N.V. Mounting unit and hair cutting appliance
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US9925675B2 (en) 2013-11-22 2018-03-27 Koninklijke Philips N.V. Linkage unit and hair cutting appliance
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WO2016001019A1 (en) * 2014-07-04 2016-01-07 Koninklijke Philips N.V. Blade set, hair cutting appliance, and related manufacturing method
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